Factor Info

ID 197729
Size 743 digits / 2466 bits
Status composite
Value 15939178304343373997684818387220960186933582326289303091933724023770141766073110969917604488085435552956639730721962644019967130389317854567079708921422990441500096128269874089172073851872602593559384963187617360771207455494509476225346287295026187044566792591037183509510719563382473307754612575955234705517640889757258464746273747696558286546194643805477604723464356141177604249942701795008281809766608182040821885178837640065812660743589365588927810904617530265593733508582489930580917841489095560475301895400923436269072433308118082686392903557623870029802891403592078150992145800004561026968481301597236171096876369593753043590570139085015789606561653113770297992884903833904346031464437186727058764466387970421837526751943137675106894489

Factorizations

Primary (ID: 22219) 688032426812647379990413979 (proven prime)
(ID: 197731) 23166318451272129439194392775036666218298179150467146013078414083005243488996888170454641472679828596160764690336584402230815946260655040296305223627389964714284807793369513138363555550787493700815199979540145560487343637302509274319696531911450573476261515216124575954364155283011374633696247193840436363515718478813130455207678082372562569663058073866985293545185799809179232858458350897614206677876613120288878514011956060477399643695392346194083773760684541708382288967575591784491908124027093069328009504601971289171064849387409474275287847464362597349519181504896903872231531878313690430666671422885203475895790819021693786556720460265294011409105607815791070903127308980672434062228893202478521397789541865691 (composite)

Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.